3G allows mobile phones and mobile dongles to achieve broadband speeds similar to that of home broadband. This allows users to browse the internet, email and download files and video whilst on the move.

The amount of data that can be captured when taking a photograph or video. A larger number represents a higher quality image, though this is also affected by other factors such as the lens size and quality.

Having a memory card slot allows you to save data to a memory card and then transfer it to another device. For example you may put a photo from your camera or mobile phone onto a memory card and then plug it into your printer to print directly.